Typhoon Haiyan – believed to be the biggest storm to make landfall on record – clearly demonstrates the risk posed by abrupt climate change intensified extreme super storms. Yet the Intergovernmental Panel on Climate Change (IPCC) – the United Nations science body that assesses the state of climate science – is failing to carry out a comprehensive risk assessment that takes into account amplifying positive feedbacks and worse case scenarios. Without such a transparent and comprehensive climate risk assessment, that is free of government interference – the world finds it difficult to assess climate risk – and is unlikely to embrace urgent emissions cuts, protect and restore ecosystems, and implement a global carbon tax. Please demand such reforms at the IPCC.